Here: SuSE Linux 9.3

ias-nr1:~ # ls /etc/sysconfig/network/ifcfg-dummy*
/etc/sysconfig/network/ifcfg-dummy0  /etc/sysconfig/network/ifcfg-dummy1

ias-nr1:~ # cat /etc/sysconfig/network/ifcfg-dummy0
STARTMODE=auto
IPADDR=10.0.0.1
NETMASK=255.0.0.0
PREFIXLEN=8
BROADCAST=10.0.0.0

ias-nr1:~ # cat /etc/sysconfig/network/ifcfg-dummy1
STARTMODE=auto
IPADDR=10.0.0.2
NETMASK=255.0.0.0
PREFIXLEN=8
BROADCAST=10.0.0.0

ias-nr1:~ # modprobe -o dummy dummy0

ias-nr1:~ # modprobe -o dummy dummy1

ias-nr1:~ # lsmod | grep dummy
dummy1                  3848  0
dummy0                  3848  0

ias-nr1:~ # rcnetwork reload
Setting up network interfaces:
    dummy0
    dummy0    IP address: 10.0.0.1/8                                  done
    dummy1
    dummy1    IP address: 10.0.0.2/8                                  done
Setting up service network  .  .  .  .  .  .  .  .  .  .  .  .  .  .  done

ias-nr1:~ #